Spread the cake with then lemon butter icing, leaving a 1cm/½in border. Spoon the lemon curd evenly over the icing. Slowly roll the cake up again, enclosing the filling, and place on a plate.
For this recipe you will need 2 Swiss roll tins ... s jelly, soak the gelatine leaves in cold water for 5 minutes to soften. Using a vegetable peeler, peel 6 strips from a lemon and 6 strips ...